<style>div { position:absolute; width:200px; height:200px; }</style>
<div style="background: -moz-radial-gradient(50px 80px, circle closest-side, white, black 50px); top:10px; left:10px;"></div>
<div style="background: -moz-radial-gradient(150px 80px, circle closest-side, white, black 50px); top:10px; left:220px;"></div>
<div style="background: -moz-radial-gradient(80px 50px, circle closest-side, white, black 50px); top:220px; left:10px;"></div>
<div style="background: -moz-radial-gradient(80px 150px, circle closest-side, white, black 50px); top:220px; left:220px;"></div>
<div style="background: -moz-radial-gradient(20px 20px, circle closest-side, white, black 20px); height:100px; -moz-transform-origin:0 0; -moz-transform:scale(1.0, 2.0); top:430px; left:10px;"></div>
<div style="background: -moz-radial-gradient(180px 20px, circle closest-side, white, black 20px); height:100px; -moz-transform-origin:0 0; -moz-transform:scale(1.0, 2.0); top:430px; left:220px;"></div>
<div style="background: -moz-radial-gradient(20px 20px, circle closest-side, white, black 20px); width:100px; -moz-transform-origin:0 0; -moz-transform:scale(2.0, 1.0); top:640px; left:10px;"></div>
<div style="background: -moz-radial-gradient(20px 180px, circle closest-side, white, black 20px); width:100px; -moz-transform-origin:0 0; -moz-transform:scale(2.0, 1.0); top:640px; left:220px;"></div>
